Isaiah J. Mahoney
Peer Specialist · Seattle, WA
Isaiah J. Mahoney is a peer specialist with a practice address in Seattle, Washington, and NPI 1538080460, issued on Jul 24, 2026. Check the license with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Isaiah J. Mahoney
- Primary taxonomy
- Peer Specialist 175T00000X
- Practice location
- 861 Poplar PL S, Seattle, WA 98144
- Phone
- (844) 987-9274
- Enumerated
- Jul 24, 2026
- Record last updated
- Jul 24, 2026
- Fax
- (206) 838-1851
- Entity
- Type 1 · individual
8 nearest peer specialist records → All 2,628 in Washington → Look up another NPI →
Also registered at 861 Poplar PL S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Karrie Carroll, SUDPTStudent in an Organized Health Care Education/Training Program1710720206
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- Ellis McDaniel, CDPAddiction (Substance Use Disorder) Counselor1164999504
Verify Isaiah J. Mahoney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Isaiah J. Mahoney among 2,628 peer specialist records in Washington
Isaiah J. Mahoney is one of 2,628 peer specialist records with a practice address in Washington. 0% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2026, is newer than 92% of them.
- NPI issued2026 · 92% of these records are older, 0% newer
- In a Medicare fileNo · 0% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2026 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175T00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Peer Specialist providers in Washington
There are 2,628 peer specialist records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,628 in Washington → Every provider in Seattle → Peer Specialist nationwide →
The 8 peer specialist records with the nearest ZIP codes
- Alexander Anaya, AAC, CPCSeattle, WA 981441225507981
- Danaelle Bell, CG 60765431Seattle, WA 981441952870131
- Brooke GowerSeattle, WA 981441447728753
- Molly Gras-UrsySeattle, WA 981441700355443
- Matthew JellersonSeattle, WA 981441275001109
- Kristina KeefeSeattle, WA 981441659840569
- Clarence Koch, AACSeattle, WA 981441609345883
- Ro LimSeattle, WA 981441093296311
Common questions
What is Isaiah J. Mahoney's NPI number?
Isaiah J. Mahoney's National Provider Identifier (NPI) is 1538080460, issued on Jul 24, 2026. An NPI identifies a provider in billing; it is not a license.
Where is Isaiah J. Mahoney located?
The NPPES record lists a practice address at 861 Poplar PL S, Seattle, WA, 98144. Phone: (844) 987-9274. Providers update this record themselves, so call before visiting.
How can I verify Isaiah J. Mahoney's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.